const getWechatApi = () => {
  // #ifdef MP-WEIXIN
  if (typeof wx !== "undefined") return wx;
  // #endif
  return null;
};

export function getWechatLoginCode(wechatApi = getWechatApi()) {
  if (!wechatApi || typeof wechatApi.login !== "function") {
    return Promise.reject(new Error("当前环境无法获取微信登录凭证"));
  }

  return new Promise((resolve, reject) => {
    wechatApi.login({
      success: (result) => {
        const code = String(result?.code || "").trim();
        if (code) {
          resolve(code);
          return;
        }
        reject(new Error("微信登录凭证获取失败"));
      },
      fail: () => reject(new Error("微信登录凭证获取失败")),
    });
  });
}